The following values taken from Sandettie Automatic Lightship
Wind: Moderate Breeze (Force 4)
Sea State: Small waves, becoming larger; fairly frequent white horses.
Air Temperature: 4.0°C (39.2°F)
Air Pressure: 1023.4 mb
Sea Temperature: 7.5°C (45.5°F)
Wave Height: 0.5 metres (1.6 Feet)
Wind Speed: 13.9 MPH (6.2 m/s)
Wind Direction: E
Visibility at sea: 5.8 Miles
Readings from: 19:00 (GMT)

All time minimum and maximum sea temperatures (since 2014).
Minimum is 5.0°C at Fri,02 Mar 2018 15:35:03
Maximum is 21.0°C at Sun,10 Sep 2023 18:05:03